Tuesday, April 13, 2010

Stantec designing rail signal system for Dallas transit

Written by 

Engineering firm Stantec is designing a new signaling system for a portion of the Dallas Area Rapid Transit (DART) system in Dallas, Texas. The new system is part of the construction of the new Lake Highland station along the light rail's Blue Line between downtown Dallas and Garland.

As part of the signaling system, Stantec's rail signals specialists are adding new software and hardware to support the new power switch interlocking system, which essentially governs the signals to trains that indicate whether it is safe to pass through upcoming intersections. The team will also test the system to make sure it operates safely before the new station opens.

The new station is part of DART's 2030 transit expansion plan, which is focused on fostering public transportation and developing transit-oriented communities throughout the Dallas area. Construction of the new Lake Highland station has already begun, and it is expected to open in late 2010.

The firm is now wrapping up design of a similar signaling and communications system for an extension of the Miami-Dade Metrorail, a 22.5-mile heavy-rail line that travels between downtown Miami, Fla., and its suburbs. Stantec is replacing the existing control system at the Metrorail's Earlington Heights station with a state-of-the-art microprocessor control system, a first for the Miami-Dade Metrorail. The microprocessor controls will automatically record system data and improve the system's diagnostic capabilities. New signals and controls, switch machines, electronic track circuits and upgraded communications networks will also be installed as part of the project. The system is expected to go into manufacturing and assembly later this year and be completed by mid 2012.

Stantec's rail signal specialists have designed a number of similar control systems for rail lines across the country, including the transit and light rail systems in Philadelphia, Houston, Cleveland and Norfolk, Va.

blog comments powered by Disqus